ARC

弧 コ

JY f1842 360
arc
括弧・かっこ・brackets
弧線・こせん・arc of a circle
円弧・えんこ・circular arc
INDEPENDENT - arc
弧を描く・こをえがく・describe an arc

"bow" and "melon" acting phonetically to mean rounded with also adding connotations of its own shape. Originally meant a curved type of bow, but eventually like the English term bow, became to mean a round arc.

TEST
brackets
arc of a circle
circular arc
describe an arc